SeAH Besteel Holdings subsidiary SeAH Aerospace and Defense has been selected as a key partner of Boeing, the world's largest aircraft manufacturer.
SeAH Aerospace and Defense said on the 15th that it signed a long-term agreement (LTA) with Boeing to supply high-strength aluminum alloy materials. Starting in 2026, it will supply core aluminum materials used in the fuselages and wings of aircraft built by Boeing.
This deal is more than a simple supply contract. After a direct transaction agreement in 2024, the company was recognized for its quality and on-time delivery capabilities and elevated to a "long-term strategic partner."
Aluminum for aircraft structures is known for stringent quality standards because it is directly tied to passenger safety. SeAH cleared Boeing's high bar through a system that tracks the entire process history from materials and supplies receipt to machining.
Earnings growth is also expected to gain momentum. SeAH Aerospace and Defense has secured production volume in advance through this contract for its new 2,300-ton plant under construction in Changnyeong, South Gyeongsang. With the new plant set to start operating in 2027, the company will be able to run it stably from day one, easing initial operating expense burdens and improving profitability.
SeAH Aerospace and Defense's cumulative operating margin for the third quarter this year was 20.6%, the highest since its founding. The company has successfully established itself in the high value-added materials market by successively winning global airlines including Boeing, Airbus, and Embraer as clients.
A SeAH Besteel Holdings official said, "This contract is a milestone showing that SeAH has entered the global aerospace materials market as a 'key player,'" adding, "We will accelerate entry into new platforms to increase our growth pace."